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" If A and B together can perform a piece of work in 8 days, A and C together in 9 days, and B and C in 10 days : how many days would it take each person to perform the same work alone ? Ans. A 14JA days, B 17fa, and C 23JT. "
Elementary Algebra: Embracing the First Principles of the Science - Page 114
by Charles Davies - 1842 - 258 pages
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New Elementary Algebra Embracing the First Principles of the Science

Charles Davies - Algebra - 1891 - 306 pages
...for each ? Ans. 13 6s. 8d. for the horse; 6 13s. 4d. for the harness ; 40 for the chaise. 6. If A and B together can do a piece of work in 8 days, A and C together in 9 days, and B and C in 10 days, how many days would it take each to perform the same work alone? Am. A, 14f days; B, 17f...
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A Drill-book in Algebra

George William Jones - Algebra - 1892 - 300 pages
...100? 11. What number is that from which if 5 be subtracted, two thirds of the remainder is 40 ? 12. A and B together can do a piece of work in 8 days, A and C in 9 days, B and C in 10 days: in how many days can each man do the work alone ? in how many days can...
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American Mental Arithmetic

Middlesex Alfred Bailey - Arithmetic - 1892 - 176 pages
...to do e, or Де whole, as > и them working togetlier? contained times in I, or 11 days. - * 262. If A and B together can do a piece of work in 5 Ans- 13* ааУ3- Ь 1 day both can j JA i • о do i of it ; A can do k and В i—i. or A days,...
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A First Book in Algebra

Wallace Clarke Boyden - Algebra - 1894 - 188 pages
...a third in 15 hours. In what time could the cistern be filled if all three pipes were running ? 48. A and B together can do a piece of work in 8 days, A and С together in 10 days, and A by himself in 12 days. In what time can B and С do it ? In what time...
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For sixth, seventh, and eighth grades

George Edward Atwood - Arithmetic - 1894 - 396 pages
...yd. 7 sq. ft. 127 sq. in., 24 sq. yd. 141 sq. in., and 107 sq. rd. 12 sq. yd. 6 sq. ft. 9. A and B can do a piece of work in 8 days, A and C in 6 days, and A alone in 12 days. In how many days can B and C do it ? 10. If a speculator should...
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The Williams & Rogers Mental Arithmetic ...

James M. Cook - 1897 - 216 pages
...which is If times, or If days. Therefore, it will take them If days to do the work together. 2. If A and B together can do a piece of work in 5 days, and A alone can do it in 7 days, in how many days can B do it alone? SOLUTION. — If A and...
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An Algebraic Arithmetic: Being an Exposition of the Theory and Practice of ...

Silas Ellsworth Coleman - Arithmetic - 1897 - 178 pages
...after spending half his money, earned 14 cents, and then had 30 cents. How much had he at first? 7. A and B together can do a piece of work in 8 da., and A working alone can do it in 20 da. In what time can B do it ? 8. Fred has 3 times as many...
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For 6th-8th grade

George Edward Atwood - Arithmetic - 1899 - 392 pages
...sq. yd. 7 sq. ft 127 sq. in., 24 sq. yd. 141 sq. in., and 107 sq. rd. 12 sq. yd. 6 sq. ft. 9. A and B can do a piece of work in 8 days, A and C in 6 days, and A alone in 12 days. In how many days can B and C do it ? 10. If a speculator should...
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The Progressive Arithmetic: Parts I-III.

Wilbur Fisk Nichols - Arithmetic - 1903 - 328 pages
...to June 6, 1903, at5J%. 14. Find the amount of $1,047.50 for 1 yr. 9 mo. 10 da., at 7%. 1. A and B can do a piece of work in 8 days, A and C in 9 days, and A alone in 12 days. In how many days can B and C do it ? 2. How many board feet are...
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Graded Lessons in Arithmetic, Book 6

Wilbur Fisk Nichols - 1899 - 146 pages
...$129, if the rate of loss is 33 \%. 16. Find the cost of goods sold for $73.85 at a gain of 1. A and B can do a piece of work in 8 days, A and C in 9 days, and A alone in 12 days. In how many days can B and C do it ? a. How many board feet are...
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